<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        function makeSalary(base) {
            return function(performance) {
                return base + performance
            }
        }
        const s5 = 10000;
        const makeSalaryS5 = makeSalary(s5)
        let A = makeSalaryS5(3000)
        console.log(A);
    </script>
</body>
</html>